package com.itheima02.day02test;

/**
 * @author 刘全
 * @date 2021/7/16
 */
public class KeyBoard implements USB{
    @Override
    public void open() {
        System.out.println("连接键盘的USB");
    }

    @Override
    public void close() {
        System.out.println("断开键盘的USB");
    }
}
